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Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium. Ans)(6.01512*7.5/100)+(7.01600*92.5/100)=6.940934
Waves: A disturbance that travels by a medium is called wave.
VELOCITY- TIME GRAPH: The graphs which represents the variation of velocity of an object with respect to time is known as velocity- time graph.
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why is the resultant of 3 non-coplanar vector always non-zero?
An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration because of gravity is 10 meters per second squared, the pote
why fall an apple from a tree
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The thrust developed to propel the jet ski shown in Fig is a result of water pumped through the vehicle and exiting as a high-speed water jet. For the conditions shown in the Fig,
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when an object is dropped, what is its acceleration at the moment of release? Explain with reasoning.
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